Suffolk County Reports First Case of West Nile Virus this Season

Suffolk County today reported one case of West Nile virus; the first case reported this season.

The individual, who is under the age of 50 and resides in the Town of Huntington, began experiencing symptoms consistent with West Nile virus on in mid-August, was subsequently hospitalized, and is now recovering at home.

West Nile virus is transmitted to humans by the bite of an infected mosquito. It is estimated that 20 percent of those who become infected will develop clinically noticeable symptoms of West Nile virus disease. Mild symptoms may include fever, headache and body aches, skin rash and swollen lymph glands. More severe symptoms include high fever, headache, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, vision loss, numbness and paralysis. West Nile virus can be fatal. Residents who experience symptoms are advised to visit their healthcare providers.  While there is no specific treatment for West Nile virus, patients may be offered supportive therapy as needed.

Individuals who are most at risk for severe infection include those over 50 years of age and those with chronic illness or compromised immune systems. Suffolk County residents are urged to take precautions to avoid being bitten by mosquitoes during mosquito season, which extends from June 1 through November 1.

Suffolk County Health Commissioner Dr. Gregson Pigott said, “We hope people will heed the message that mosquitoes are more than a nuisance. Their bites can transmit serious diseases, including West Nile virus.”

To avoid mosquito bites, use insect repellent containing DEET*, spray clothing with repellent containing permethrin, avoid going outside from dusk to dawn when most mosquitoes are active, wear long sleeves and long pants when nighttime activity is unavoidable, eliminate standing water from flowerpots, clogged gutters, recycle bins, birdbaths, toys, swimming pool and hot tub covers. 

Suffolk County’s first case of West Nile virus was reported in 2001. Last year, the county reported 21 cases of the virus, and in 2023, five cases.

According to Suffolk County's Arthropod-borne Disease Laboratory, the number of mosquitoes infected with West Nile virus this year, 111 to date, is average. Last year, the county reported 235 infected mosquitoes for the entire season.

For information about West Nile virus, including local data regarding infected mosquitoes and West Nile virus cases, visit https://www.suffolkcountyny.gov/Departments/Health-Services/Public-Health/Preventive-Services/Arthropod-borne-Diseases/Mosquitoes

To report mosquito problems or stagnant pools of water, call the Department of Public Works’ Vector Control Division at 631-852-4270. 

* Follow label instructions. Consult healthcare provider before using insect repellent on young children.

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